Indiana Jones, now a captain in the French army, is assigned to escort two Austrian princes to meet with Emperor Karl I and convince him to broker a peace deal with France and Britain at the expense of Austria's alliance with Germany. Two months later, at the French Embassy in Petrograd, Indy must decide between his loyalty to his friends and his work in French Intelligence when he is pressed to discover details of a possible bolshevik revolution in Russia which would cripple the French war effort.
When Dr. Indiana Jones – the tweed-suited professor who just happens to be a celebrated archaeologist – is hired by the government to locate the legendary Ark of the Covenant, he finds himself up against the entire Nazi regime.
After arriving in India, Indiana Jones is asked by a desperate village to find a mystical stone. He agrees – and stumbles upon a secret cult plotting a terrible plan in the catacombs of an ancient palace.
When Dr. Henry Jones Sr. suddenly goes missing while pursuing the Holy Grail, eminent archaeologist Indiana must team up with Marcus Brody, Sallah and Elsa Schneider to follow in his father's footsteps and stop the Nazis from recovering the power of eternal life.
Indiana Jones transfers from the Belgian army to the French intelligence service, where his first assignment is as a reconnaissance photographer for the 124th Squadron, a group of volunteer American pilots in the French army.
January, 1910. The Jones family attends a meeting of the Theosophy movement in Benares, India. There young Indy befriends a young boy named Jiddu Krishnamurti who is presented by the society to be the next world teacher and possible messiah.
In Japan, the vampire-hunter Saya, who is a powerful original, is sent by her liaison with the government, David, posed as a teenage student to the Yokota High School on the eve of Halloween to hunt down vampires.